Jill had the following scores on quizzes.
0: 0 quizzes
1: 1 quiz
2: 3 quizzes
3: 4 quizzes
4: 4 quizzes
5: 1 quiz
what is the mean score for jill’s quizzes? show your work.

➷ 1 + 2 + 2 + 2 + 3 + 3 + 3 + 3 + 4 + 4 + 4 + 4 + 5 = 40

Divide this values by the number of quizzes taken

Number of quizzes taken = 13

40/13 = 3.076923

The mean score is 3.076923 (if you have to round, then do so accordingly)

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proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc